The area ratio of leaves and green stems and degree of leaves reduction of succulent plants of the genus Euphorbia L. (Euphorbiaceae Juss.)

  • Sergii O. Kalashnyk Taras Schevchenko National University of Kyiv, ESC "Institute of Biology", O.V. Fomin Botanical Garden, Department of Introduction of Tropical and Subtropical Plants, Symon Petlura str. 1, 01032 Kyiv, Ukraine
DOI: https://doi.org/10.5281/zenodo.160780

Abstract

The ratio between area of green leaves and stem area for model photosynthetic plants of 23 Euphorbia L. species were determined. On the base of this ratio studied species were divided onto three groups: a) leaf surface area exceeds area of green stems more than in twice; b) leaf surface area exceeds area of green stems less than in twice; c) area of green stems exceeds leaf surface area more than in twice. Correlation between these groups and arid degree of native habitats of investigated species has been ascertained. It was established that current grouping method is more objective in sense of morphological characteristic stem-succulent representatives from the genus Euphorbia in context of their ecological specifications than simple statement of leaves presence and photosynthetic activity of the stem.

References

Бабаев А.Г., Зонн И.С., Дроздов Н.Н., Фрейкин З.Г. 1986. Пустыни. Мысль, Москва.
Бутник А.А., Нигманова Р.Н., Пайзиева С.А., Саидов Д.К. 1991. Экологическая анатомия пустынных растений. Т. 1. Деревья, кустарники, кустарнички. Фан, Ташкент.
Гайдаржи М.М. 2009. Життєві форми і онтоморфогенез сукулентних рослин: автореф. дис... д.б.н.: спец. 03.00.05 “ботаніка”. Київ.
Гайдаржи М.М., Нікітіна В.В., Баглай К.М. 2011. Сукулентні рослини (Анатомо-морфологічні особливості, поширення й використання). ВПЦ «Київський університет», Київ.
Дідух Я.П., Плюта П.Г., Протопопова В.В., Єрмоленко В.М., Коротченко І.А., Каркуцієв Г.М., Бурда Р.І. 2000. Екофлора України. Том 1. Фітосоціоцентр, Київ.
Калашник С.О. 2013. Стратегії структурних пристосувань сукулентних представників роду Euphorbia L. (Euphorbiaceae): автореф. дис... к.б.н.: спец. 03.00.05 “ботаніка”. Київ.
Клейн Р.М., Клейн Д.Т. 1974. Методы исследования растений. Колос, Москва.
Bruyns P.V., Mapaja R.J., Hedderson T. 2006. A new subgeneric classification for Euphorbia (Euphorbiaceae) in Southern Africa based on ITS and psbA-trnH sequence data. Taxon 55 (2): 397–420.
Carter S. 2004. Euphorbia. In: Eggli U. (ed.), Illustrated handbook of succulent plants: Dicotyledons: 102–203. Springer Verlag, Berlin.
Mauseth J.D. 2004. The structure of photosynthetic succulent stems in plants other than cacti. Int. J. Plant Sci. 165 (1): 1–9.
von Willert D.J., Eller B.M., Werger M.J.A., Brinckmann E., Ihlenfeldt H.-D. 1992. Life strategies of succulents in deserts: with special reference to the Namib desert. Cambridge Univ. Press, Cambridge.
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Published
2014-04-01
How to Cite
KALASHNYK, Sergii O.. The area ratio of leaves and green stems and degree of leaves reduction of succulent plants of the genus Euphorbia L. (Euphorbiaceae Juss.). Modern Phytomorphology, [S.l.], v. 6, p. 277-281, apr. 2014. ISSN 2227-9555. Available at: <http://ojs.phytomorphology.org/index.php/MP/article/view/168>. Date accessed: 11 apr. 2018. doi: https://doi.org/10.5281/zenodo.160780.
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Vol 6 (2014)
Section
Research Articles
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